If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. What am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

One day, Birbal got late for a function and Akbar was highly disappointed.
Please forgive me Jahanpanah. I arrived late because my child was crying and I had to calm him down, explained Birbal.
Does it take this long to placate a child? questioned the emperor. I feel that you have no idea about how to raise a child. I order you to act like a child and I will act like your father to show you how you should have dealt with your child. Come on! Ask me all that he asked from you.
Father, I want a cow, said Birbal.
The emperor quickly ordered one of the servants to bring a cow to the kingdom.
I want to drink its milk, now, now, now! said Birbal, imitating the voice of his child.
Akbar asked his servants to milk the cow and give to Birbal.
The servants quickly milked the cow and offered the milk to Birbal. He sipped in a little and then gave the bowl to the emperor.
As Birbal put up the next demand that was put up by his child a few hours ago, the emperor was stunned and left the room.
What did Birbal say?

There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag. Randomly remove two balls from the bag. * If they are of different colors, put the blue one back in the bag. * If they are the same colour, take them out and put a red ball back in the bag. Repeat this until only one ball remains in the bag. What is the color of the sole ball left in the bag ?

If there are fifteen crows on a fence and the farmer shoots a third of them, how many crows are left?

Which of the eight images will fill the missing image in the puzzle below?

The more it dries, the wetter it becomes. Can you tell what it is?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?